add activeadmin

db/migrate/20220721015136_create_active_admin_comments.rb

@@ -0,0 +1,16 @@
+class CreateActiveAdminComments < ActiveRecord::Migration[7.0]
+  def self.up
+    create_table :active_admin_comments do |t|
+      t.string :namespace
+      t.text   :body
+      t.references :resource, polymorphic: true
+      t.references :author, polymorphic: true
+      t.timestamps
+    end
+    add_index :active_admin_comments, [:namespace]
+  end
+
+  def self.down
+    drop_table :active_admin_comments
+  end
+end

db/schema.rb

@@ -10,10 +10,24 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.0].define(version: 2022_07_21_002916) do
+ActiveRecord::Schema[7.0].define(version: 2022_07_21_015136) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
+  create_table "active_admin_comments", force: :cascade do |t|
+    t.string "namespace"
+    t.text "body"
+    t.string "resource_type"
+    t.bigint "resource_id"
+    t.string "author_type"
+    t.bigint "author_id"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["author_type", "author_id"], name: "index_active_admin_comments_on_author"
+    t.index ["namespace"], name: "index_active_admin_comments_on_namespace"
+    t.index ["resource_type", "resource_id"], name: "index_active_admin_comments_on_resource"
+  end
+
   create_table "users", force: :cascade do |t|
     t.string "email", default: "", null: false
     t.string "encrypted_password", default: "", null: false

db/seeds.rb

@@ -5,3 +5,4 @@
 #
 #   movies = Movie.create([{ name: "Star Wars" }, { name: "Lord of the Rings" }])
 #   Character.create(name: "Luke", movie: movies.first)
+User.create!(email: 'admin@example.com', name: 'Admin User', password: 'password', password_confirmation: 'password')